Book-cover.



Patented Nov. Il, |902.

H. C. THOMAS &. A. LYNCH.

BOOK COVER.

[Application led Sept. 30, 1901.)

(No Model.)

' UNITED STATES' PATENT OFFICE.

HENRY O. THOMAS AND ALFRED LYNCH, OF BROOKLYN, NEW YORK.

BooK-COVER.

SPECIFICATION forming part of Letters Patent N o. 713,176, datedNovember 11, 1902.

Application filed September 30,1901. Serial No. 76,993. (No model.)

.To all whom, it may concern.-

Be it known that We, HENRY C. THOMAS and ALFRED LYNCH, citizensof theUnited States, and residents of New York city, borough of Brooklyn,State of New York, have invented certain new and useful Improvements inBook-Covers, of which the following is a specification.

The object of our invention is to provide a simple, cheap, strong, andefficient removable cover for books; and to this end the inventioncomprises the novel-details of improvement that will be more fullyhereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming parthereof, wherein- Figure l is a face view of a book-cover, partly broken,embodying our invention. Fig. 2 is a cross-section, enlarged, on theline 2 2 in Fig. l. Fig. 3 is a similar view on the line 3 3 in Fig. l.Fig. 4 is a detail of a modified form of the cover. Fig. 5 is across-section, enlarged, on the line 5 5 in Fig. 4. Fig. 6 is a detailshowing a protecting corner-piece for the pockets. Fig. 7 is a detailcross-section, enlarged, on the line 7 7 in Fig. 6; and Fig. 8 is aperspective view of a modifie form of pocket.

Similar numerals of reference indicate corresponding parts in theseveral views.v

Our improved cover comprises a main back l, adapted to extend across theback of a book, and at the ends of the back Vl are located receptaclesor pockets to receive the bookcovers. In Fig. l the pockets are formedby cutting three triangular members 2 3 4 from a sheet of paper or clothand folding them upon each other, as indicated, a space 5 being left atthe edges of the central portion of the back l between the pockets forthe reception of the binding or back of the book. The cover isstrengthened at the portion 5 by means of a strip or piece of fabric 6,which is glued or pasted to the back and extends lengthwise thereofunder the'folded portions 24, and the strip 6 has at opposite sides ofthe space 5 extensions 6, which pass along the corresponding innersurfaces of the parts 2 4 and are glued thereto, so as to lie inthe bendat the junction ofthe parts l 2 and l 4, and thereby protect the samefrom tearing at the ed ges 2a 4a. The stript also has an extension 6b,which is folded back on the former and is glued thereto to strengthenthe same between the parts 2 2 and 4 4. The manner of forming'andconnecting the strip 6 to the parts of the cover is clearly shown inFig. l, Where a piece of the cover is represented as laid back. Theoverlapped members 2 3 4 may be glued together or may be secured by ametal clasp 7, having prongs 7, which pass through the layers 2 3 4 andare clenched, as shown in Fig. 3.

In Figs. 4 and 5 the parts forming the pocket are not made so long orextended inwardly so far as in Fig. l and overlap near the corners andare there secured by theclasp 7X, forming pockets for the edges of thebook- Ycover. :'In' Fig. 4 the inner edge of the part 4b is representedas oblique to the outer edge of the cover, while in Fig. 6 the inneredge of part 4c is parallel with the outer edge of the cover. ln Figs. 6and 7 the edge of the cover is bound by a corner clamp or clip 8, whichis shown in the form of a right-angled channel-piece having a portion8?, that extends under the back l, and inwardly-projecting teeth 8b atthe opposite side, which pass through the members 3C 4C and areclenched, and thus the clamp 8 secures the edges 3 4 rmly together,protects said edges from Wear, and provides a iirm pocket for the edgeof the book-cover.

In Fig. 8 pockets are made by taking a straight strip of paper or clothand folding it back from eachend, as at 3a, far enough to provide aspace 5 for the binding, and the side edges of the back and folded parts3a are stitched longitudinally, as at 2b. The strips 6, having theportion d for attachment to the overlying part of the pocket, can beprovided in either of the forms shown, and the corner-pieces 8 can alsobe provided in all the forms shown and secured as shown in Fig. 7. Witheither construction the bookcovers can readily be slipped into thepockets and removed. therefrom, and the strip 6, particularly at thelportions 6a, will serve to strengthenthe vdevice and prevent tearing ofthe same Whenin use. The device is simple and cheap to manufacture andeliicient in use.

ICO

securing said lapped parts together, a space 15 being formed between thepockets, and a strengthening-piece located at such space and secured tothe covers and having extensions 6L secured Within the lapped parts atthe joint and having their edges coincident with zo the edges of thelapped parts, substantially as described.

H. C. THOMAS. ALFRED LYNCH.

Witnesses:

T. F. BOURNE, M. MANNING.

